Hydatid cyst- Hepatic! скачать в хорошем качестве

Hydatid cyst- Hepatic!

Radiographic features This article will discuss the most common presentation of the hepatic hydatid disease, characterised by well-defined encapsulated cystic or multicystic masses related to E. granulosus. For a specific discussion on the less common invasive form, caused by E. multilocularis, please refer to the article on alveolar echinococcosis.  Plain radiograph May show a curvilinear or ring calcific shadow overlying the liver due to calcification of the pericyst. Ultrasound Septated cyst with "daughter" cysts and echogenic material between the cysts. Appearances can vary. May show a double echogenic shadow due to the pericyst. The stage of the cyst may be classified on ultrasound, see: World Health Organisation 2001 classification of hepatic hydatid cysts. CT Fluid density cyst, with frequent peripheral focal areas of calcification, usually indicates no active infection if completely circumferential. Septa and daughter cysts may be visualised. The water-lily sign indicates a cyst with a floating, undulating membrane, caused by a detached endocyst. May also show hyperdense internal septa within a cyst showing a spoke wheel pattern. The fluid is of variable attenuation, depending on the amount of proteinaceous debris. May show dilated intrahepatic bile ducts due to compression or rupture of the cyst into bile ducts. MRI T1: mixed low signal (depending on the amount of proteinaceous cellular debris) T2: mixed high signal (depending on the amount of proteinaceous cellular debris), septa and daughter cysts are well visualised (especially on single-shot T2 sequences) T1 C+ (Gd): enhancing walls and septa #radiology #case #learning #radio #ctscan #mri #doctor #interesting #ultrasound #liver #hepatic #hydatic #case #viral #viralvideo #doct